meals = ('meat','soup','vegetables','ice_cream','salad')

print(f"原菜谱：")
for meal in meals:
    print(meal)

try:
    meals[0] = 'pizza'
except TypeError as e:
    print(f"错误：{e}")

meals = meals[1:] + ('pizza','fries')
print(f"修改后的菜谱：")
for meal in meals:
    print(meal)